<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>Insert title here</title>
        <script type="text/javascript">
            
            var img1 = new Image;
            img1.src = "../images/3.jpg";
            var img2 = new Image;
            img2.src = "../images/4.jpg";
        </script>
    </head>
    <body>
        <a href="#" onclick="alert('link');" onmouseover="document.myImage2.src=img1.src;" onmouseout="document.myImage2.src=img2.src;">
        	<img src="" name="myImage2" alt="" border=0 width=100 height=100></img>
		</a>
    </body>
</html>